Button-hole stitching and barring machine



(No Model.) 5 SheetS--Sheet l.

J. H. REED. BUTTON BULB STITG-HING AND BARRING MACHINE.

No. 394,134. Patented Dec. 4,1888.

N. PETERS. Pholuthugnphnr. wlmingmn. D. C,

(No Model.) 5 Sheets-Sheet 2.

J. H. REED.

BUTTON HOLE STITGHING AND BARRING MACHINE.

No. 394,184. Patented Deo. 4, 1888.

(No Model.) 5 Sheets-Sheet 3. J. E. REED. BUTTON HOLE STITGHING AND EARRING MACHINE.

No. 394,184. Patented Deo. 4, 1888.

A M @M N. PEYERs Phu-uimgnpnnr. vlammen. D c

(No Model.) 5y Sheets-Sheet 4.

J. H. REED. BUTTONA HOLE STITCHING AND EARRING MAGHINE.

No. 394,134. Patented Deo. 4, 1888.

INVMT 13R- N. Prrzns. Phmwmngnpmr. wuhangxm ac.

(No'Model.) 5 sheets-sneet 5.

J. H. REED.

l BUTTON HOLE STITGHING AND BARRING MACHINE.

No. 894,134. Patented 1360.4, 1888.

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WITNEEEEE N. PETERS. nwmumumpm. wnmngm u. c.

UNITED STATES PATENT OFFICE.

JAMES ll. REED, OF LYNN, MASSACl-HTSETTS.

BUTTON-HOLE STITCHING AND BARRING MACHINE.

SPECIFICATON forming part of Letters Patent No. 394,134, dated December 4, 1888.

Application filed November 16, 1887. Serial No. 255,293. (No model.)

T0 LZZ whom it may concern.-

e it known that l, .lAMEs ll. REED, of Lynn, in the county of Essexv and State of Massachusetts, a citizen of the ['nited States, have invented a new and useful lmprovement in Button-Hole Stitching and l'arring Machines, of which the follmving is a lull, clear, and exact description, reference bein had to the accompanying drawings, forming a part of this specification, in explainingits nature.

The invention is an improvt-ment upon that descril'led in my patent, No. 378,404, dated ldebruary 2l, 1824s', and I have illustrated `and described herein only so much ot' said mechanism as is necessary to show the connection between it and the devices herein specified.

The object ot' the invention is to provide means t'or automatically locking the threads at the end of the stitching of the bar.

In the drawings, Figure l isa plan view, inverted, ot' a niachine having the features of Vmy in vention. Fig. L is a Vview in pers1i ective ot' the parts forming the subject' of the invenvention. lligs. il, -l-, and 5 show various positions ot the needles in relation to each other and the material upon which they work in stitching a lnitton-hole, in forcing' the bar, and locking the barririg-stitch. Fig, t shows in plan, enlarged, the barred cnd of the button-hole. Fig. 7 is a perspective view of the needle and upper and lower thread-looping devices. Fig. s is a detail section showing the connection of a link with the arm carrying the lower needle-block. Fig. il is a view illustrating the clamp-plate, clamp, and ot her operative parts of the machine. Eig. l0 is a sectional view on the line 1.' L' ot' Fig. .l.

The machine described in said application uses two threads, and has two needles and appropriate looping devices, one ot which is above the work-plate andthe other below. In stitching the sides and eye of a lmttoi'i-hole these needles have a lixed relation to each other-that is, each is reciprocated or moved upon a `given line or track, which line or track is not varied in any respect in relation to the line or track of the other. At the comsides and eye of the button-hole, one needle is moved automatically from the path in which it was reciprocated or moved away from the other needle to a position about twice as far from it as that which it occupied during the stitchiiig ot' the sides and eye, and it continues to move or reciprocate in this new position or upon this newline. 'lhis makes the length of the horiztmtal portion of the stitch twice that which was before sewed by the same needles, and the needles are moved or reciprocated in their new relation to each other and the looping devices operated to carry the upper and lowcr threads and spread the loops until any desired number of these long stitches have been made across the end ot' the ljmtton-holc. At the completion of the last long stitch the movable needle is moved back to its original position, and one, two, or more stitches sewed tlnough the material to tasten the ends of the threads. 'lo enable this short locking-stitch to be made, the lower needle is transferred or moved backward to its original position. and this is acctnnplishetfl by ('onnecting the movable block which suplgitn'ts the needle-bar of the said needle with the rod which operates the stop-motion mechanism. This is the rod which is automatically moved duringthe barring ot' the butt on-hole, and after the sewing of a certain number ot' stitches it operates the stop-motion mechanism to disengage the driven from tht` driving pulley and bring the machine to a rest, so that after thc desired numberof larring-stitches have been formed, and when the machine is within one, two, or three stitches of its stopping-point, the needle is caused to be transferred or moved backward to its original position, in order that one, two, or three more short stitches may be taken through the material before the machine is automatically stopped.

Referring to the drawings, A represents the upper needle, which is moved or reciprocated continuously in the same path or line.

A is the lower or movable needle. It reci procated by the needle-block o, and this block is mounted at the end ot the trarnving,` or transferring arm a. (See Fig. 2.)

o2 is the upper looping device, and (ci the lower looping mechanism.

The transferring-arm a. is moved in one direction-namely, in a direction to move the IOO needle A from the needle A by the spring" at, which has a constant tension upon the arm to move it in this direction; but this movement can only take place when the clamp-plate of the machine comes into contact with the movable stud a5, and this stud is so located in relation to the path or movement of the clampplate as not to be operated by it until at the instant that it is desirable to begin the formation of the barring-stitch, and its movement at that time, through the medium of the connecting slide-plates a a7, causes a latch, as, to be withdrawn from operative connection with the projection af upon the arm am, connected with the needle-block carrying or transferring' arm a', thereby permitting the spring' ai* to move the needle A from the needle A. These parts and the manner of operating them are fully described in my said application.

A2, Fig. 9, represents the clamp-plate; Ai", the clamp; A, the but-ton about which the clamp-plate is turned.

B is a movable rod operating the stop-motion mechanism, which is given a step-by-step movement in one direction during the barring' of the button-hole and until a certain number of stitches have been made, when it serves to bring into action the devices for releasing' the driving pulley. This rod is operated by the movement of the reciprocating' pawl b, which, upon the movement of the stud a5 by the clamp-plate, the plate d and the pawl-guard Zi', is permitted to come in contact with the teeth b2 upon the inner end of the rod B. (See Fig. 2.) This operation is as described in my said patent, and serves to actuate the devices for disengaging' the driving-pulley, asrtherein described, so as Yto govern the number ol' stitches which are made' from the beginning of the vfirst barring-stitch. until the lock in g-stitch is linished; and it therefore necessary, in order that all the stitches sewed after the movement of the stud a5 and of the needle A should not be barring-stitches, that this rod B be conn eeted with the arm a', supporting the needle-block a, earryin the needle A', in such a manner that after the sewing' of the desired number of barring-stitches, which are of substantiallyT ti yice the length of the ordinary stitches upon the sides and eye of the button-hole, the needle A should be returned to practically its original position in relation to the needle A, or nearer to it than that, if desired, for the purpose of sewing' two or three additional locking-stitches through the longer barring'- stitches; and this connection between the rod or bar B and the movable arm a is obtained by means of a lever C, (see Fig. 2,) which is pivoted at c, and the bracket c fastened to the frame of the machine, and this lever is placed so that its upper end, c2, comes in line with the projection of arm c3, carried by the rod B, and which preferably is made horizontallyadjustable thereon by means of the ad justingnuts c1 The lever C is connected with the arm a by a long' rod or link, e, which preferably has a yielding connection with a movable arm, a. This is shown as obtained by extending' the end CT of the rod or link through a hole, C8, in a stud, c", extending' downward from the arm a', and mounting' thereon a spring, om, arranged to bear against a collar, c, at the extreme end of the link or rod, and a loose collar, cl2, which bears against the face of the stud. (See Fig'. l.) The tension of this spring is adjusted bythe nut cl3. The other end otl the rod or link c is connected with the lever C, preferably by means of a pin, e, movable in the slot (95 in the end of the lever, and secured tothe lever bythe nuts cw. This permits the end of the linker rod to be adjusted toward and from the tulcrum of the lever, so that the extent of the throw of the link and of the arm a', and consequently the length of the locking-stitch, can be varied.

The spring cm permits the movement of the rod or link c by the stop-n'iotion bar or rod B, after the needle A has been moved or turned to its normal position to sew the locking-stitches. This return movement ot' the needle is quick or rapid, because it is desirable for uniformity that there should be practically little variation between the leng'th of the barring-stitches as a whole and the length of the locking-stitches as a whole, and as it is desirable that there should be two or three locking-stitches sewed before the machine comes to rest it is necessary that the IOO stop-motion bar B continue to be actuated,

and this motion ot' necessity eont-inues to move the link C, but no motion is thereby com! municated to the needle A.

Upon the operation of the machine in barring', the rod B is given a step-by-step movement until the projection or arm cB comes in contact with the upper end of the lever C, and it then serves to move the lever, causing the lever to draw, by means 0i' the rod or link c, the arm a back or toward its original position-or, in other words, nearer the line of movement of the upper needle-so that the lower needle is moved into a posit-ion which enables it to locate or place one end of the stitch nearer the other end than before, and thus-a locking-stitch of any desired length is made; and as many of these stitches are taken as may be desiredgenerally two are sui'iicient-and the mechanism controlling' the movement of the bar or rod B is set generally so as to provide for the sewing' of three or. four barring-stitches and then the sewing of the two locking-stitches before the machine is automatically stopped.

Before the machine is started the bar or red B is caused to assume its original position, which releases the operating-lever C and enables the spring' cw to return it to its original. position, and also to release the tension upon the arm a', so that it may be easily moved by its operating-spring' into its barring' position.

IIO

A portion ot' a button-hole having its barringstitclt thus locked is represented in Fig. t.

It will be observed that the sewing ot' the sides and eye ol' the button-hole is the same as that described in my said patent until the locking-stitches are formed-that is, the needles AA are held in predetern'lined positions in relation to each other during the stitching of one side, the eve, and the other side of the bnttoii-hole, and then to sew a lnn'ring-stitch across the end of the button-hole slit the needle A is moved away from the needleA automaticall'v, it being permitted to assume this new position in relation to the needle A by the withdrawal of.' a latch which is operated b v the cam-plate, which permits a spring to immediately move the needle. l'pon the movement ot the latch the number ot stitches to be sewed betore the comiriletion of the buttonhole is determined by the engagement ot apawl with a notched bar operating the stop motion mechanism; and these bari'i n g-stitch es would be ot the same length were it not that the needle A is caused to be returned to its original position in relation to the needle A, after the sewing ot' the desired number of barring-stitches, b v connecting the arm sup porting the needle A', as above described, with the stint-motion bar l, whereby it is caused to return the arm o, supporting the needle A, in opposition to the spring a", and to hold the arm while the two or three additionalV shorter locking stitches are being sewed. i

Having thus t'ully described my invention, I claim and desire to secure bv Letters latent ot the United Statesl. The combination, in a button-hole stitching and barring machine. ot' two reciprocating needles, looping devices to co-operate therewith in t'orming the stitches, andan antomati c trai lslerriug meehanism-as a rm or', carrying the needle-block a and spring (r1- to transfer one needle AFrom the other during the stitching ot' the bar, and to then return it to substantially its original position to stitch one or more locking-stitches, as and tor the purposes described.

'l`he combination ot' thc needle A', its reciprocating block o, the transferring arm or support o', upon which said block o is recip- .rocatmh a spring or other equivalent device for bearing agi-inst the said arm, a latch for aeting in opposition to said spring and operated b'v the clam p-plate, a bar or rod connected with stop-motion mechanism, and engaging' devices released by the clamp-plate for causing it to be moved autolmltically during the switching ot the bar, and devices connecting said rod or bar with the movable arm or support lor moving it to its normal position in opposition to said spring al'fter the sewing ot' one or more barring-stitelnes, substantially as described.

:5. 'l`hc combination, in a button-hole stitching and barring machine, ol a needle, a reciprocating block supporting it, a movable arm or piece in which the needle-supportiug block is reciprocated, and devices operated by the clamp-plate to move said arm or piece automatically in one direction to transfer the needle in relation to the other stitch-forming devices at the beginning of the sewing ot a barring-stitch to cause a longer stitch to be made, and devices also operated b v the clampplate to return the said arm or piece, at'ter the sewing ot one or more barri11g-stitches, to its original position, as and :[or the purposes (lescribml.

et. The, combination, in a button-hole stitching and barring machine having a movable clamp-plate provided with an ,intermittent feeding movement about the button or throat ot the machine, ot. an upper eve-pointed rcciprocating needle, a lower eye-pointed reciprocating needle, a transferring device for automatically moving' the lower needle in relation to the upper needle at predetermined intervals, a latch Controlling the position ot the lower needle connected with the clampplate to be operated thereby, the stop-motion mechanism, and a device connecting it with the lower needle and adapted to return the needle to its normal position after it has been moved to sew one or more lmrring-stitches, and appropriate looping devices, substantially as described.

5. The combination, in a button-hole stitching' and barringmachine, ot mechanism specified-Such as a pawl and ratchetdt'or communicating a step-b vstep movement to a rod or similar moving part to operate a stop-motion mechanism, said rod and said stop-motion mechanism, the stitch-forming devices, one element ot' which isa reciprocating needle, its supporting-bar, and a moval )le support i'or said bar, and devices such as a rod and spring-- connecting the movable needle-bar support with the rod-operating stop-nmtion mechanism, as and l'or the purposes specified.

t3. The combination, in alnitton-hole stitching and barring machine, ot the looping devices, the reciprocating needle A, the reciproeating needle A', its block o, a movable snpport or holder, o, and devices, as arm c', carrying' the Anmalle-block o, and spring ci, for moving it and the needle A toward the .said needle A at the end ot' the stitching of the bar, to enable the needles and the looping devices to sew one or more locking-stitches, substantially as (.lescribed.

7. 'l`he combination ot" the bar or rod B, means tor operating the same, the projection or arm c, carried thereb v,the lever C, one end of which is extended into the path ol' the movement oli' the arm or projection c3, the movable support or arm o', carrying the reciprocat ing block holding the needle A', and the link or rod c, connecting said support o with said lever, as and l'or the purposes specilied.

8. The combinat ion, in a button-hole stitch- IOO IIO

ing and barring machine, of the needle A', its reciprocating` block a, the movable arm or support Ca', the lever C, actuated as specified, the link 0r rod c, and a spring, 010, carried thereby, forming a yielding connection between said lever and Said arm and perinitting' the movement of the link or rod e6 after the said arm or support ce has been moved t0 its normal position, as and for the purposes described.

JAMES H. REED.

Witnessesz v F. F. RAYMOND, 2d, E. P. SMALL. 

